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No.SK00-9664-EI-013-00 Vacuum Gauge Instruction Manual G-TRAN series Multi Ionization Gauge Sensor unit Analog Output Type Model ST200-A Serial Communication Type Model ST200-R (Option) (Option) This manual is intended for products with serial numbers below or later. ST200-A: S/N 00001~ ST200-R: S/N 00001~...
Safety precautions To use the G-TRAN series sensor unit (hereinafter referred to as this unit) safely, please be sure to read the instruction manual and the following safety precautions: Power shutoff *WARNING* If this unit is damaged, shut off the power immediately. Failure to do so may cause fire or electric shock.
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Check power supply polarity Before turning on the power supply, ensure that the polarities of this unit's *WARNING* operating voltage and the supply voltage are correct. If the wrong polarities are connected, it may damage this unit and the equipment connected to it or cause a fire.
Table of contents BEFORE USING THIS PRODUCT ........II SAFETY SYMBOL MARKS ..........II SAFETY PRECAUTIONS ..........III REVISION HISTORY ..........V TABLE OF CONTENTS ..........VI 4.6. SAU I/O ....17 CONNECTOR DEDICATED APPLICATION ....1 POWER SUPPLY INTERNAL CIRCUIT ..18 SPECIFICATION .......
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10.1. (ST200-A ST200-A ......33 ONTROL OUTPUT SIGNAL ......27 14.2. ST200-A ...33 ONLY ERO POINT ADJUSTMENT OF 10.2. 14.3. ST200-R ....33 ERIAL COMMUNICATION OUTPUT SIGNAL DJUSTMENT OF (ST200-R ) ......27 ONLY HOW TO USE SERIAL COMMUNICATION 10.3. (ST200-A ) 28 ENSOR ERROR SIGNAL ONLY (ST200-R)...
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Writing address setting .. 39 ....52 SENSITIVITY COEFFICIENT Reading communication WARRANTY ......55 speed ......40 Writing communication EC DECLARATION OF CONFORMITY ..57 speed ......40 CERTIFICATE OF CONTAMINATION ..58 Enabling checksum confirmation ....... 40 DIAGRAMS ......59 Disable checksum 22.1.
SH200 and ST200 series can check various settings and status using the dedicated applications below. Please refer to the application instruction manual for details. ・UL-MOBI_Windows (Supported OS:Windows 10 64bit or later) ・UL-MOBI_Andoroid (Supported OS:Android 6.0 or later) Download: UL-MOBI_Android Google Play UL-MOBI_Windows https://www.ulvac.co.jp/download/en/application/ UL-MOBI_Windows Instruction manual https://www.ulvac.co.jp/download/en/application/ UL-MOBI UL-MOBI Function Note...
Specification The Multi ionization gauge sensor unit ST200 is a vacuum gauge that can measure the high vacuum pressure by connecting a dedicated sensor unit (triode gauge type). The following three types of interfaces are available. Users can select the specification that best suits the communication protocol.
2.1. Unpacking and checking accessories When the product arrives, please unpack, and check the product. Also, please check for any damage from transportation and make sure that there are all accessories. Accessories Multi ionization gauge sensor unit ST200 (main unit) ※...
2.2. ST200 standard specifications Name Multi ionization gauge sensor unit Type Analog output type Serial communication type Model ST200-A ST200-R Compatible sensor SWT-16 (NW16), SWT-25 (NW25): 1 Compatible Pirani gauge SWU ※SWU and SPU cannot operate measuring unit Pirani gauge SPU together.
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Heating Sensor only 150℃ (with controller ST200 removed) temperature Sensor flange part 80℃ (only when the main unit is installed horizontally, the controller ST200 ambient temperature is 50℃ or less) ※ When heating, deviations from specifications, such as accuracy, is observed. Operating humidity 15% to 80% (no condensation) range...
2.3. ST200 stand-alone mode standard specifications Measurable 1.0×10 Pa to 1.0×10 pressure range Accuracy (N 1.0×10 Pa to 3.0×10 Pa: ±10% POWER LED status White : Start up Blue : Normal operation Green : Filament is on Blinking Red: Power failure Control input FIL ON/OFF, DEGAS ON/OFF signal...
2.5. SPU combination mode (ST200+SPU) standard specifications Measurable 1.0×10 Pa~1.0×10 pressure range When pressure drops: SPU indicates 2Pa or lower, SPU ⇒ST200 When pressure rises: SPU indicates 3Pa or higher, ST200⇒SPU ※ ST200 measurement can be forcibly turned off with the control signal.
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2.6. SAU combination mode (ST200+SWU/SPU+SAU) standard specifications Measurable 1.0×10 Pa to 1.0×10 pressure range When pressure drops: SAU indicates 10000Pa or lower, SAU ⇒ SWU/SPU SWU/SPU indicates 2Pa or lower, SWU/SPU ⇒ ST200 When pressure rises: SWU/SPU indicates 3Pa or higher, ST200 ⇒...
Handling precautions *Note* Please read this chapter before using this unit. 3.1. Precautions on operating environment Ensure ventilation Do not place this unit in a sealed container. Install it in a place where ventilation is ensured. Sealing it may increase the temperature of the electronic components in the power supply and shorten its life.
3.2. Precautions on power supply Power supply This unit must be connected to a power supply or an evaluation unit that is ground- protected and complies with the standard for PELV (EN/IEC 60204-1). Also, install this unit with a fuse to connect. If the voltage supplied to this unit is less than DC20V, it will not indicate the accurate pressure.
Repair Please contact the distributor, ULVAC, or service offices indicated in the instruction manual for repair. Disposal Please dispose of this unit according to the local regulations. In particular, if the sensor unit is used in an atmosphere that may pose a danger to humans, please use a specialized disposal company to dispose of it.
Name of each part and its function 4.1. Controller section ST200-A/R Fig. 4-1 Diagram of the mechanism part Name Function Fitting screw to the hood of I/O Connector ① I/O connector (D-sub15 pin(male), M2.6 screw) Screw to fix the sensor (hexagon socket head locking screw M3) Sensor unit ②...
4.2. Panel section ST200-A/R Fig. 4-2 ST200-A/R diagram of the panel section Name Function I/O connector for power supply and various data signals ① I/O connector (D-sub15 pin(male), M2.6 screw) Connector to connect with PC or smartphone (setpoint setting) ② USB connector (USB type-C) Connector to connect with pirani gauge detection unit SWU or SPU (MINI I/O...
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4.3. I/O connector analog output type ST200-A Fig. 4-3 Analog output type ST200-A I/O connector pin layout (D-sub15 pin(male), M2.6 screw) This Unit Function ※ number Power supply Power supply for driving this unit (DC20V to 28V) It outputs a pressure protection signal or Sensor error a signal when an error occurs, such as (Lo output)
4.4. I/O connector serial communication type ST200-R Fig. 4-4 Serial communication type ST200-R I/O connector pin layout (D-sub15 pin(male), M2.6 screw) This Unit Function ※ number Power supply Power supply for driving this unit (DC20V to 28V) RS232C RxD RxD of RS-232C Terminating resistor Terminating resistor for RS-485.
4.5. SWU/SPU I/O connector Fig. 4-5 SWU/SPU I/O connector pin layout (Mini I/O plug) Pin number This Unit Function Power supply DC+5V Power supply for driving this unit (DC5V) Ground for this unit Power supply DC+5V Power supply for driving this unit (DC5V) Communication terminal Communication for pressure...
4.6. SAU I/O connector Fig. 4-6 SAU I/O connector pin layout (Mini I/O plug) Pin number This Unit Function Power supply DC+15V Power supply for driving this unit (DC15V) Ground for this unit Power supply DC+15V Power supply for driving this unit (DC15V) Measured value output Pressure signal voltage...
Power supply internal circuit This chapter explains the power supply input section of this unit. ※ The signal GND [Pin15 and Pin10] is the ground for signals such as measured value output, setpoints, and serial communications. ※ The power supply GND [Pin9] and signal GND [Pin15] become one common GND after passing through the filter internally.
Status of each LED 7.1. POWER LED status(common for ST200-A/R) The status of POWER LED is shown in the table below. Status Note White Start up In the combination mode, Power on, ST200 filament is LED is blue when the Blue pressure reaches the pirani gauge measurement area.
Control input signal This chapter explains the input signal to this unit. The analog output type inputs a signal by an open collector. The communication type ST200-R uses serial communication to control. 8.1. Control input signal (ST200-A only) Contact capacity *Note* The capacity of the external contact should be greater than or equal to the input power supply voltage or greater than DC30V/10mA.
8.2. FIL ON/OFF signal FIL ON/OFF signal *Note* How to use ST200 FIL ON/OFF signal differs between the ST200 stand- alone mode and the combination mode. Pressure when the filament is on *Note* Please note that if ST200 filament turns on under high pressure, the filament will break.
Measured value output(common to ST200-A/R) This unit outputs the measured pressure as a voltage signal of DC 0V to 10V. I/O connector: Pin8 [measured value output+] – Pin15[GND] 9.1. Pressure conversion formula Use the following formula to convert to pressure. P = 10 ^ { ( V - 7.25 ) / 0.75 + k } ⇔...
9.3. ST200+SWU measured value output The measured value output in several statuses that can occur during a measurement is shown in Table 9-2 below. Table 9-2 Measured value output status Operating status Measured value output voltage Voltage corresponding to the measurement Normal measurement pressure: 2.0V to 9.5V 1×10...
9.4. ST200+SPU measured value output The measured value output in several statuses that can occur during a measurement is shown in Table 9-3 below. Table 9-3 Measured value output status Operating status Measured value output voltage Voltage corresponding to the measurement Normal measurement pressure: 2.0V to 8.75V 1×10...
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9.5. ST200+SWU(SPU)+SAU measured value output The measured value output in several statuses that can occur during a measurement is shown in Table 9-4 below. Table 9-4 Measured value output status Operating status Measured value output voltage Voltage corresponding to the measurement pressure: Normal measurement 2.0V to 9.5V Higher than atmospheric pressure...
Control output signal This chapter explains the signals that ST200 outputs. The analog output type ST200-A outputs a signal by an open collector, and the communication type ST200-R outputs a signal by serial communication. 10.1. Control output signal (ST200-A only) ST200-A outputs sensor error and setpoint signals from the I/O connector in open collector format.
10.3. Sensor error signal (ST200-A only) ST200-A outputs sensor error signal when each sensor has errors. When a sensor error occurs, the signal is Lo output, and the POWER LED lights up red, and the pressure signal output is 9.9V or higher. ST200 stand-alone mode Error POWER LED...
10.4. Setpoint operation signal (ST200-A only) The setpoint is a function that outputs a signal to the outside when the pressure drops below the set pressure. The set pressure value is called the "Setpoint." When the measured pressure value drops below the setpoint, this signal is Lo output. Refer to chapter 11 for details on how to set the setpoint.
Setpoint setting (ST200-A only) The setpoint is a function that outputs a signal to the outside when the pressure drops below a set pressure. The set pressure value is called "Setpoint." When using the setpoint, follow the instruction to make the necessary settings. The factory default setting for ST200-A is 5.0×10 Pa for both set points 1, 2, and 11.1.
The password can be set to any four numbers. Download: UL-MOBI_Android Google Play UL-MOBI_Windows https://www.ulvac.co.jp/download/en/application/ UL-MOBI_Windows Instruction manual https://www.ulvac.co.jp/download/en/application/ Filament power monitoring signal This function outputs an on (Lo) signal when the power supplied to the ST200 filament exceeds the specified range.
② Press the filament key of the one channel display unit "ISG1" twice within 1 second. Please refer to the application manual for details. Download: UL-MOBI_Android Google Play UL-MOBI_Windows https://www.ulvac.co.jp/download/en/application/ UL-MOBI_Windows Instruction manual https://www.ulvac.co.jp/download/en/application/ 13.2. Zero point adjustment of ST200-A The zero point is automatically adjusted at 1,000Pa or less.
② Press the filament key of the one channel display unit "ISG1" twice within 1 second. Please refer to the application manual for details. Download: UL-MOBI_Android Google Play UL-MOBI_Windows https://www.ulvac.co.jp/download/en/application/ UL-MOBI_Windows Instruction manual https://www.ulvac.co.jp/download/en/application/ 14.2. Zero point adjustment of ST200-A The zero point is automatically adjusted at 1.0×10 Pa or less.
How to use serial communication (ST200-R) This chapter explains RS-232C and RS-485 of the serial communication type ST200-R. 15.1. Communication specifications RS-232C RS-485 Two-wire type Half-duplex Asynchronous ASCII code Data bit length 8 bit Stop bit 1 bit No parity ※1 Maximum cable length 15m Maximum cable length 30m...
The maximum number of connections per one line for RS-485 is 31 including the host. The setting is valid at any time. This address number is also used for RS-232C. Download: UL-MOBI_Android Google Play UL-MOBI_Windows https://www.ulvac.co.jp/download/en/application/ UL-MOBI_Windows Instruction manual https://www.ulvac.co.jp/download/en/application/...
Standard data format The following is the standard data format for sending and receiving. ・・・・・・ Dn CHKH CHKL Colon Device address, higher(0~3) Device address, lower (0~9) Commands (upper/lower case-sensitive) Data Data Higher bits of status(state) Lower bits of status(state) CHKH Higher bits of checksum (0~9, A~F) CHKL Lower bits of checksum (0~9, A~F)
SAU/SWU/SPU zero point adjustment command Command CHKH CHKL SAU zero point adjustment condition : SWU/SPU pressure is 1,000Pa or lower. SWU/SPU zero point adjustment condition: SWU/SPU pressure is about 2Pa or lower. (1.0×10 Pa or lower recommended) When the zero point is adjusted, 'o' is returned.
Reading Setpoint2 Value Command CHKH CHKL Return format from this unit to PC. : AD0 ± CHKH CHKL "X.XXE±XX" contains the setpoint value. "±" can be "+" or "-". Writing setpoint1 value command : AD0 ± CHKH CHKL "X.XXE±XX"...
Reading communication speed Command CHKH CHKL Return format from this unit to PC. : AD0 CHKH CHKL "n" indicates the following: 0: 38400 1: 19200 2: 9600 Writing communication speed Command : AD0 CHKH CHKL "n" indicates the following: 0: 38400 1: 19200 2: 9600 ...
Checksum The checksum is for checking whether the data is received normally. If the checksum is not added, this unit will not be able to receive the command. The checksum calculation is Xor(exclusive OR) from the address to the character before the checksum.
15.4. Status setting list This shows the setting of the filament on and the degas on, errors, and setpoint status. When writing status Filament ON/OFF signal *Note* The use of the ST200 filament ON/OFF signal differs between the ST200 stand-alone mode and the combination mode. SH (Status/high bit) Status 〔38H〕...
When reading status Filament ON/OFF signal *Note* The use of the ST200 filament ON/OFF signal differs between the ST200 stand-alone mode and the combination mode. The output of the Em.Valid OK signal varies depending on the mode setting. *Note* The output of the Em.Valid OK signal varies depending on the mode setting.
Replacement of sensor Turn off the power supply. When replacing the sensor, be sure to turn off the power supply. Do *WARNING* not turn on the power until you finish the replacement. Inserting or removing the sensor with the power on may damage this unit and the equipment connected to it or cause a fire.
16.2. Installation and removal mesh, etc. Tool The necessary tools are tweezers with a thin tip and gloves. Use clean tweezers and gloves. Removal of meshes and baffles Put it in gap such as tweezers or mesh and lift it slowly. Procedure ①...
The power supply voltage is not within the Check the power supply voltage with a tester. specification range. Internal circuit failure. This unit requires repair or inspection by ULVAC. ● POWER LED is on, but 0V is still output Cause Solution Incorrect wiring or disconnection of the cable.
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Even at atmospheric pressure, the output is not more than 9.5V Cause Solution Atmospheric pressure adjustment is off. Please refer to chapter 13 and adjust the atmospheric pressure. The pressure value is not constant Cause Solution Pressure fluctuates. Normal The pressure value fluctuates due to the Reduce the vibration as much as possible.
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Pressure does not drop below 10 Pa (combination mode) Cause Solution Altitude is high or pressure is low. Please refer to chapter 13 to adjust SAU at atmospheric pressure. Exhaust to 1000Pa or less, and implement the automatic zero-point adjustment of SAU. SAU is contaminated.
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If the cable is long or in an environment with a lot of noise, set the terminating resistor. Internal circuit failure This unit requires repair or inspection by ULVAC. The cable is electromagnetically induced. Change the cable installation location. Or use...
17.2. The internal electrode disconnection check The wiring inside the sensor is shown in the figure below. Please refer to the figure below and check the continuity. Fig. 17-1 Diagram of wiring inside the sensor 17.3. Insulation between the pin and the case of the sensor. Excluding the case ground of the sensor and between the filament and grid pin, the insulation between the pin and the case is 100MΩ...
Technical report 18.1. Measurement principle When a gas molecule collides with a particle having an energy greater than a certain level, it emits electrons and becomes an ion. This is called the ionization phenomenon of gas. The filament is heated to ionize the gas, and the accelerated thermal electrons that are generated are used for the measurement.
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Substituting the equation(2) into the equation(1), Ii = Srj(N ) × Srj × Ie × P ――(3) Assuming that Ii(N ) is the ion current when measuring with nitrogen gas, the following equation is obtained. Ii = Srj × Ii(N ――(4) The actual measured value output is the correct values multiplied by Srj (specific sensitivity coefficient).
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3.30±1.04 2.07±0.04 predicted using Xj. 1.58* 1.63±0.30 2.58* 2.74±0.45 * are cited from Reference 3.44* 3.64±0.37 4.04* 4.57±0.47 5.60±0.76 Please note that ULVAC 6.60 6.77±1.44 does not have data for 7.60 7.72 other gases. 8.18 8.86 0.614* 2.06±0.27 1.29* 2.27±0.28 1.77*...
This unit is strictly inspected in-house before it is shipped out. However, should any failure that is our responsible occur, such as defects in manufacturing or accidents during transportation, please contact the Components division of ULVAC, Inc. or the nearest sales office or distributor. We will repair or replace it free of charge.
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3) Should you have any questions or need consults about this product, please check the model and the serial number and contact the nearest sales office, distributor, or the Components Division of ULVAC, Inc. Please note that the contents of this instruction manual are subject to...
22.7. Unit cable GUC-200A WIRE COLOR (D-sub9) (MINI I/O) ――― WHITE/ORANGE ――― WHITE/GREEN ――― WHITE/BROWN ――― BLUE ――― WHITE/BLUE ――― GREEN ――― ORANGE ――― BROWN SHELL ――― SHELL DRAIN...
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Sales Offices https://www.ulvac.co.jp/support_info/sales_office/index.html ULVAC, Inc. Components Division 2500 Hagizono, Chigasaki, Kanagawa, 253-8543, Japan TEL:+81-467-89-2261 ULVAC, EQUIPMENT SALES, Inc. Head Office (Tokyo) 2-3-13 Konan, Minato-ku, Tokyo, 108-0075, Japan TEL:+81-3-5769-5511 ULVAC, EQUIPMENT SALES, Inc. Osaka Branch 3-3-31 Miyahara, Yodogawa-ku, Osaka, 532-0003, Japan ULVAC, Inc.
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